The former Today show co-host will make history Friday by becoming the first-ever woman to anchor NBC’s prime-time Olympic coverage solo. She’ll step in for Lauer, who filled in for Costas during the past three days.

The Sochi Winter Games mark the first time since 1988 that Costas has not hosted NBC’s prime-time coverage.

"Bob’s eye issue has improved, but he’s not quite ready to do the show," NBC Olympics executive producer Jim Bell told Today.com. "If your eyes are sensitive to bright lights, a TV studio is not the place to be."

Now Vieira just has to make sure she doesn't succumb to pink eye, too. She said on the Today show Friday that her "eyes are killing" her. We can only hope that she's joking.

Our Mission

To inspire active participation in the world outside through award-winning coverage of the sports, people, places, adventure, discoveries, health and fitness, gear and apparel, trends and events that make up an active lifestyle.